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arXiv 1003.0478physics.flu-dyn
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毛细异常波

Capillary rogue waves

M. Shats, H. Punzmann, H. Xia

摘要:

我们报告的第一个观察极端波事件(流氓波)参数驱动的毛细波。在强迫超过一定阈值时会观察到流氓波。超过这个阈值,频谱加宽,并发展指数尾。我们第一次提出了强四波耦合的非线性波(高三相干),这表明调制不稳定性的主要机制在流氓波的证据。流氓波的产生被确定为波高的概率密度函数中的一个明显的尾部的开始。它们的概率比从测量的波浪背景中预期的要高。

英文摘要:

We report the first observation of extreme wave events (rogue waves) in parametrically driven capillary waves. Rogue waves are observed above a certain threshold in forcing. Above this threshold, frequency spectra broaden and develop exponential tails. For the first time we present evidence of strong four-wave coupling in non-linear waves (high tricoherence), which points to modulation instability as the main mechanism in rogue waves. The generation of rogue waves is identified as the onset of a distinct tail in the probability density function of the wave heights. Their probability is higher than expected from the measured wave background.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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